19723808

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2789}}^1$

素因数の和:2829

約数の個数: 48

約数和(自身を含む): 44294040

約数和(自身を除く): 24570232

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 2789, 3536, 5578, 7072, 11156, 22312, 36257, 44624, 47413, 72514, 89248, 94826, 145028, 189652, 290056, 379304, 580112, 616369, 758608, 1160224, 1232738, 1517216, 2465476, 4930952, 9861904, 19723808]

約数ペア:

[(1, 19723808), (2, 9861904), (4, 4930952), (8, 2465476), (13, 1517216), (16, 1232738), (17, 1160224), (26, 758608), (32, 616369), (34, 580112), (52, 379304), (68, 290056), (104, 189652), (136, 145028), (208, 94826), (221, 89248), (272, 72514), (416, 47413), (442, 44624), (544, 36257), (884, 22312), (1768, 11156), (2789, 7072), (3536, 5578)]